Home / 2,581.22-3,872.01-1,485.11

Finding the Fourth Proportional to 2,581.22, 3,872.01 and 1,485.11

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Solution

The fourth proportional to 2,581.22, 3,872.01 and 1,485.11 is: 2,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.22 : 3,872.01 = 1,485.11 : x
  2. Step 2: Convert to fraction form
    2,581.22/3,872.01 = 1,485.11/x
  3. Step 3: Cross multiply
    2,581.22x = 3,872.01 × 1,485.11
  4. Step 4: Simplify right side
    2,581.22x = 5,750,360.77
  5. Step 5: Solve for x
    x = 5,750,360.77/2,581.22
  6. Step 6: Final answer
    x = 2,227.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.